Deer tallow (venison fat): SAP value and fatty acids
Deer tallow (venison fat) has a saponification value of 194.45 mg KOH/g. One gram needs 0.139 g of sodium hydroxide (NaOH) for bar soap or 0.194 g of potassium hydroxide (KOH) for liquid soap to turn fully into soap, before any superfat.
Key numbers
- SAP, NaOH
- 0.13862 g per g oil
- SAP, KOH
- 0.19445 g per g oil
- Saponification value
- 194.45 mg KOH/g
- INCI name
- Deer Fat
Example: 100 g of Deer tallow (venison fat) with no superfat needs 13.9 g of 100% NaOH, or 19.4 g of 100% KOH. A 5% superfat uses 5% less.
In soap
We don't have a sourced fatty-acid profile for it yet, so Soap Ledger shows no soap-quality scores for recipes that use it. The lye calculation still works.
Only soap-supplier tables give a number, and they may share an origin with older soap calculators. No standard or study was found. Wild-animal fat varies; a COA or lab test is best.
Sources
SAP value: 194.45 mg KOH/g (Median of sources' mgKoh_mid (no Codex/pharmacopoeia standard found)), from Saponification Chart, From Nature With Love (soap/cosmetic supplier). Printed value: 195 mg KOH/g.
Published values we checked:
- 195 mg KOH/g — From Nature With Love (soap/cosmetic supplier)
- NaOH 0.1382 / KOH 0.1946 g alkali per g oil — Certified Lye
NaOH and KOH values are converted from mg KOH/g with the molar masses 39.997 and 56.106 and rounded to 6 decimals, exactly as in the Soap Ledger app. Real oils vary by origin, grade and lot: check your supplier's certificate of analysis. Verify every weight before you make this, and follow lye safety. Not a safety or compliance certification.
Last updated .